Rear Window Defroster Interference With Radio

One peculiar thing i have noticed now that its getting a bit nippy in the mornings is that when the rear window defroster is turned on the radio reception goes to crap.

Rear window defroster interference with radio. My car is currently at Mercedes Benz dealer for the issue with static on FM radio stations while the rear defrost is ON. Also some rear window defogger grids may be inoperative. My Subbie is a 2004. I believe its because the defroster wires in the rear window are also used as the radios antenna.

This is a new car for me but I think the radio antenna is the wires in the upper part of the rear window. Via the current supply lines of the vehicles electrical system into the heating conductors on the windshield or rear. Rear defrost wiring becomes loose and burns this unit out. The rear defroster and radio antenna and both in the defroster grid on many vehicles.

Whether this is true on the Impala or not I am not sure. 2007-2008 Camry and Camry Hybrids North America Produced Some customers may notice static noise from AM or FM radio bands when the rear window defroster is on. Well they just called me and told me that they found the cause of the static issue and said its the antenna and radio amplifier. Based on effective VIN.

Discussion Starter 1 Jan 13 2006. Or it is not plugged in into the headunit. Windshield antenna defroster combination with radio interference reduction. So far the wife and i are very happy with it beautiful car.

I turn on my rear window defroster and my FM reception goes awayI am pretty sure I did it to myself because it only started happening after I cleaned the rear window with some windshield washing fluid and a paper towel. Between the rear passenger window and the back window is a junction where rear defrost wiring and radio antenna connect. The title says it when I turn on the defroster the radio reception goes downhill with lots of interference. The heater strips on the rear window are damaged somewhere which causes the static on the FM radio because the radio antenna is also built into the rear window.

Visually it looks like the defroster is the bottom ¾th of the window and the radio is on the top ¼th. A window heater includes an arrangement of heating conductor sections provided on the window. Otherwise you will need a new rear window. The radio reception in my Toyota Corolla would almost go to static for nearby stations and distant stations would be all static when activating the rear defroster.

This is a design flaw. This can cause electricity to leak from the defroster circuit to the antenna circuit which causes the interference when the defroster is activated. I shall check into a recall and talk with my mechanic. Rear Defroster - Radio interference.

I turn on my radio and all is good. The procedure to correct this is to turn off the rear defogger manually after 5 minutes and then immediately turn it back on let it run for 5 minutes turn off then on again immediately. I wonder if it has something to do with the smaller plug attached to the antenna plug behind the radio. Use the following repair procedure and the revised rear window glass to improve this condition.

I have an aftermarket headunit but originally had the full DIN radio with 2 plugs for the antenna. It could be that your roof antenna is missing easy to tell wink. Recently the car detail guy used a blade to take off a sticker that was on the inside of the window. This condition may be due to microscopic cracks in the electrically heated grids of the rear window defogger.

My car is a 2005 c230k sedan with a NON-BOSE radio. So I have the dreaded rear defrosterradio static interference issue on my 2011 Corolla LE. When looking for replacement at salvage yard everyone of them I found had burned up. Jump to Latest Follow 1 - 6 of 6 Posts.

IS 300 has 2 antennas one in the rear window and one on top of the roof. Jump to Latest Follow. Mine does the same thing. When you switch the rear defroster on it is disconnected from the radio and so the radio will receive a poor signal.

Just picked up a 2006 E91. These cracks may cause electrical interference when the rear defogger is on and this could affect radio reception. However in either case radio interference or static is usually a symptom of a bad electrical ground. Rear Window Defroster Radio Interference.

The addition of vertical grid lines to the heated back window defogger circuits has made it difficult to detect broken defogger grid lines. 71sx Registered 05 CTS Luxury Joined Aug 15 2005 55 Posts. Does anyone else have a problem with their radio reception when the rear window defroster is on. A radio receiving antenna is located in the vicinit.

Rear defroster lights up but does not defrost also very weak car radio reception. Your problem is due to an interruption in the heat conductor in the rear window this causes interference with some AMFM Bands. Was your headunit taken out before. Thats probably why the heater was left unplugged.

If that s the case then maybe th.

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